Visual Graph Getting Started - Change Element's Shape

We name them as A, C, B from left to right by changing their Name property.

2. Now, select these 3 rectangles, right-click them and execute Merge element to merge them.
We try to stretch this merged element by mouse, its shape will be changed, like this:

By default, the element will keep the ratio of its inner elements when changing its shape.

3. If we want to stretch it like the following shape, that is, do not change A, just only move B to stretch C, how to do?

Please right-click this element and execute Edit element (by default, Visual Graph IDE will open a new document that named .element1 for editing its inner elements), and then click Functions tab at left, double-click OnResize, write the following script: